I used to run my 14' Lowe with an Evinrude 50/35 jet near Hysham, but thats as far east as I went just because I lived in Billings and didn't want to drive far. It did perfectly fine though. I never did run it during the spring runoff though, its too dangerous in my opinion. the only people you see running boats that time of year is pretty much Search and Rescue.